The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::is_empty – std::is_empty Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_empty; If T is an empty type (that is, a non-union class type with no non-static data members other than bit-fields of size 0, no virtual functions, no virtual base classes, and no non-empty base classes), provides the member constant value…
std::is_destructible< _Tp > – Synopsis Inherits std::integral_constant< bool,(__is_destructible_safe< _Tp >::value)>. Public Types typedef integral_constant < bool, __v > type" typedef bool value_type Public Member Functions constexpr operator value_type () Static Public Attributes static constexpr bool value Detailed Description template<typename _Tp>struct std::is_destructible< _Tp > is_destructible Definition at line 652 of file type_traits. Author Generated automatically by…
std::is_destructible,std::is_trivially_destructible,std::is_nothrow_destructible – std::is_destructible,std::is_trivially_destructible,std::is_nothrow_destructible Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_destructible; template <class T> (2)(since C++ 11) struct is_trivially_destructible; template <class T> (3)(since C++ 11) struct is_nothrow_destructible; 1) If an imaginary struct containing a member object of type T has a non-deleted destructor, provides the member constant value equal true. For…
std::is_default_constructible< _Tp > – Synopsis Inherits std::integral_constant< bool,(__is_default_constructible_safe< _Tp >::value)>. Inherited by std::__is_constructible_impl< _Tp >. Public Types typedef integral_constant < bool, __v > type" typedef bool value_type Public Member Functions constexpr operator value_type () Static Public Attributes static constexpr bool value Detailed Description template<typename _Tp>struct std::is_default_constructible< _Tp > is_default_constructible Definition at line 748 of file…
std::is_default_constructible,std::is_trivially_default_constructible,std::is_nothrow_default_constructible – std::is_default_constructible,std::is_trivially_default_constructible,std::is_nothrow_default_constructible Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_default_constructible; template <class T> (2)(since C++ 11) struct is_trivially_default_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_default_constructible; 1) If std::is_constructible<T>::value is true, provides the member constant value equal to true, otherwise value is false. 2) If std::is_trivially_constructible<T>::value is true, provides the…
std::is_default_constructible,std::is_trivially_default_constructible, – std::is_default_constructible,std::is_trivially_default_constructible, Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_default_constructible; template <class T> (2)(since C++ 11) struct is_trivially_default_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_default_constructible; 1) If std::is_constructible<T>::value is true, provides the member constant value equal to true, otherwise value is false. 2) If std::is_trivially_constructible<T>::value is true, provides the member constant…
std::is_copy_constructible< _Tp > – Synopsis Inherits std::__is_copy_constructible_impl< _Tp, bool >. Inherited by std::__is_copy_insertable< allocator< _Tp > >. Detailed Description template<typename _Tp>struct std::is_copy_constructible< _Tp > is_copy_constructible Definition at line 974 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_copy_constructible,std::is_trivially_copy_constructible,std::is_nothrow_copy_constructible – std::is_copy_constructible,std::is_trivially_copy_constructible,std::is_nothrow_copy_constructible Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_copy_constructible; template <class T> (2)(since C++ 11) struct is_trivially_copy_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_copy_constructible; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a…
std::is_copy_constructible,std::is_trivially_copy_constructible, – std::is_copy_constructible,std::is_trivially_copy_constructible, Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_copy_constructible; template <class T> (2)(since C++ 11) struct is_trivially_copy_constructible; template <class T> (3)(since C++ 11) struct is_nothrow_copy_constructible; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a member constant…
std::is_copy_assignable< _Tp > – Synopsis Inherits std::__is_copy_assignable_impl< _Tp, bool >. Detailed Description template<typename _Tp>struct std::is_copy_assignable< _Tp > is_copy_assignable Definition at line 1118 of file type_traits. Author Generated automatically by Doxygen for libstdc++ from the source code.
std::is_copy_assignable,std::is_trivially_copy_assignable,std::is_nothrow_copy_assignable – std::is_copy_assignable,std::is_trivially_copy_assignable,std::is_nothrow_copy_assignable Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_copy_assignable; template <class T> (2)(since C++ 11) struct is_trivially_copy_assignable; template <class T> (3)(since C++ 11) struct is_nothrow_copy_assignable; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a…
std::is_copy_assignable,std::is_trivially_copy_assignable, – std::is_copy_assignable,std::is_trivially_copy_assignable, Synopsis Defined in header<type_traits> template <class T> (1)(since C++ 11) struct is_copy_assignable; template <class T> (2)(since C++ 11) struct is_trivially_copy_assignable; template <class T> (3)(since C++ 11) struct is_nothrow_copy_assignable; 1) If T is not a referenceable type (i.e., possibly cv-qualified void or a function type with a cv-qualifier-seq or a ref-qualifier), provides a member constant…
std::is_convertible< _From, _To > – Synopsis Inherits std::integral_constant< bool, __is_convertible_helper< _From, _To >::value >. Public Types typedef integral_constant < bool, __v > type" typedef bool value_type Public Member Functions constexpr operator value_type () Static Public Attributes static constexpr bool value Detailed Description template<typename _From, typename _To>struct std::is_convertible< _From, _To > is_convertible Definition at line 1317…
std::is_convertible,std::is_nothrow_convertible – std::is_convertible,std::is_nothrow_convertible Synopsis Defined in header<type_traits> template <class From, class To> (1)(since C++ 11) struct is_convertible; template <class From, class To> (2)(since C++ 20) struct is_nothrow_convertible; 1) If the imaginary function definition To test() { return std::declval<From>(); } is well-formed, (that is, either std::declval<From>() can be converted to To using implicit_conversions, or both From…
std::is_constructible< _Tp, _Args > – Synopsis Inherits std::integral_constant< bool,(__is_constructible_impl< _Tp, _Args…>::value)>. Public Types typedef integral_constant < bool, __v > type" typedef bool value_type Public Member Functions constexpr operator value_type () Static Public Attributes static constexpr bool value Detailed Description template<typename _Tp, typename… _Args>struct std::is_constructible< _Tp, _Args > is_constructible Definition at line 955 of file type_traits….
std::is_constructible,std::is_trivially_constructible,std::is_nothrow_constructible – std::is_constructible,std::is_trivially_constructible,std::is_nothrow_constructible Synopsis Defined in header<type_traits> template <class T, class… Args> (1)(since C++ 11) struct is_constructible; template <class T, class… Args> (2)(since C++ 11) struct is_trivially_constructible; template <class T, class… Args> (3)(since C++ 11) struct is_nothrow_constructible; 1) If T is an object or reference type and the variable definition T obj(std::declval<Args>()…); is well-formed, provides…
std::is_constant_evaluated – std::is_constant_evaluated Synopsis Defined in header <type_traits> constexpr bool is_constant_evaluated() noexcept; (since C++20) Detects whether the function call occurs within a constant-evaluated context. Returns true if the evaluation of the call occurs within the evaluation of an expression or conversion that is manifestly constant-evaluated; otherwise returns false. The following expressions (including conversions to the…
std::is_const – std::is_const Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_const; If T is a const-qualified type (that is, const, or const volatile), provides the member constant value equal true. For any other type, value is false. Template parameters T – a type to check Helper variable template template< class T…
std::is_compound – std::is_compound Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_compound; If T is a compound type (that is, array, function, object pointer, function pointer, member object pointer, member function pointer, reference, class, union, or enumeration, including any cv-qualified variants), provides the member constant value equal true. For any other type,…
std::is_class – std::is_class Synopsis Defined in header<type_traits> template <class T> (since C++ 11) struct is_class; Checks whether T is a non-union class type. Provides the member constant value which is equal to true, if T is a class type (but not union). Otherwise, value is equal to false. Template parameters T – a type to…